<template>
    
              <!-- 头部 -->
              <header class="header">
            <!-- 头部的第一行 -->
            <div class="top">
                <div class="container">
                    <div class="loginList">
                        <p>尚品汇欢迎您！</p>
                        <!-- 未登录 -->
                        <p v-if="!userName">
                            <span>请</span>
                            <!-- <a href="###">登录</a> -->
                            <router-link to="/login">登录</router-link>
                            <!-- <a href="###" class="register">免费注册</a> -->
                            <router-link to="/register" class="register">免费注册</router-link>
                        <!-- 已经登录 -->
                        </p>
                        <p v-else>
                            <a>{{userName}}</a>
                            <a class="register" @click="logout">退出登录</a>
                        </p>
                    </div>
                    <div class="typeList">
                        <router-link to="/center/myorder">我的订单</router-link>
                        <router-link to="/shopcart">我的购物车</router-link>
                        <a href="###">我的尚品汇</a>
                        <a href="###">尚品汇会员</a>
                        <a href="###">企业采购</a>
                        <a href="###">关注尚品汇</a>
                        <a href="###">合作招商</a>
                        <a href="###">商家后台</a>
                    </div>
                </div>
            </div>
            <!--头部第二行 搜索区域-->
            <div class="bottom">
                <h1 class="logoArea">
                    <router-link class="logo" title="尚品汇" to="/home">
                        <img src="./images/logo.png" alt="">
                    </router-link>
                </h1>
                <div class="searchArea">
                    <form action="###" class="searchForm">
                        <input type="text" id="autocomplete" 
                        class="input-error input-xxlarge" v-model="keyword"/>
                        <button class="sui-btn btn-xlarge btn-danger" type="button" @click="goSearch">搜索</button>
                    </form>
                </div>
            </div>
        </header>
    
</template>
    <script>
        export default {
            name:'Header',
            data() {
                return {
                    keyword:''
                }
            },
            mounted(){
                //通过全局事件总线清除关键字
                this.$bus.$on("clear",()=>{
                     this.keyword = '';
                })
            },
            methods: {
                goSearch(){
                    // this.$router.push({ 
                    //     name:"search",params:{keyword : this.keyword},query:{k:this.keyword.toUpperCase()}})
                    //如果有query参数带进query参数
                    if(this.$route.query){            
                        let location = {
                            name:"search",
                            params:{keyword : this.keyword || undefined}};
                        location.query =  this.$route.query;  
                        console.log(location)
                        this.$router.push(location)
                        }
                    },
                async logout(){
                    //发请求给服务器 清除数据 清除本地存储
                    try {
                        //如果退出成功回到首页
                       await this.$store.dispatch('userLogout')
                       this.$router.push('/home')
                    } catch (error) {
                        alert(error.message)
                    }
  
                }
            },
            computed:{
                //用户名信息
                userName(){
                    return this.$store.state.user.userInfo.name;
                }
              }
            }
    
    </script>

    <style lang="less" scoped>
                .header {
        &>.top {
            background-color: #eaeaea;
            height: 30px;
            line-height: 30px;

            .container {
                width: 1200px;
                margin: 0 auto;
                overflow: hidden;

                .loginList {
                    float: left;

                    p {
                        float: left;
                        margin-right: 10px;

                        .register {
                            border-left: 1px solid #b3aeae;
                            padding: 0 5px;
                            margin-left: 5px;
                        }
                    }
                }

                .typeList {
                    float: right;

                    a {
                        padding: 0 10px;

                        &+a {
                            border-left: 1px solid #b3aeae;
                        }
                    }

                }

            }
        }

        &>.bottom {
            width: 1200px;
            margin: 0 auto;
            overflow: hidden;

            .logoArea {
                float: left;

                .logo {
                    img {
                        width: 175px;
                        margin: 25px 45px;
                    }
                }
            }

            .searchArea {
                float: right;
                margin-top: 35px;

                .searchForm {
                    overflow: hidden;

                    input {
                        box-sizing: border-box;
                        width: 490px;
                        height: 32px;
                        padding: 0px 4px;
                        border: 2px solid #ea4a36;
                        float: left;

                        &:focus {
                            outline: none;
                        }
                    }

                    button {
                        height: 32px;
                        width: 68px;
                        background-color: #ea4a36;
                        border: none;
                        color: #fff;
                        float: left;
                        cursor: pointer;

                        &:focus {
                            outline: none;
                        }
                    }
                }
            }
        }
    }
    </style>